Rebar Arc Bending Machine
Heavy-duty rebar arc bending machine for bars up to 50 mm, ideal for large-radius arc bending on site.
Key features at a glance
| Max rebar diameter for arc bending | 50mm |
|---|---|
| Bending arc diameter | R500 / unlimited |
| Drive wheel speed | 30 rpm—43 rpm |
| Drive wheel diameter | 270 mm |
| Driven wheel diameter | 270mm |
Also known as
This machine is often called by these names or searched with these phrases.
GWH50CG Rebar Arc Bending Machine — Heavy-Duty Arc Bending up to 50 mm
The GWH50CG Rebar Arc Bending Machine is a heavy-duty unit built for large-radius arc bending of reinforcing bar, including on-site work where long, smooth curves are required. It is manufactured by Gongda (China Rebar Machinery, chinarebarmachinery.com) in Hefei, Anhui, China. The factory is rooted in the electromechanical works of Hefei University of Technology, and Gongda exports rebar processing machines worldwide, including Russia, Spain, Latin America, the Middle East, Southeast Asia and Africa.
Key Specifications Explained
- Maximum rebar diameter: 50 mm — the upper capacity limit for arc bending on this model.
- Arc bending diameter: R500 and above / unlimited — suited to large-radius curves rather than tight bends.
- Drive wheel speed: 30–43 rpm — two working speeds for controlled feed through the bending rolls.
- Drive wheel: 270 mm diameter, 100 mm height; driven wheel: 270 mm diameter, 105 mm height — matched roll geometry for stable bar guidance.
- Motor model: YD132M-4/6, power: 5 kW + 6 kW, speed: 1150/1650 rpm — two-speed drive matched to the 30–43 rpm roll output.
- Voltage/frequency: 380 V / 50 Hz — standard industrial three-phase supply.
- Dimensions: 1020 × 1000 × 1060 mm — compact footprint relative to its 50 mm capacity.
Applications
The GWH50CG is intended for large-radius arc bending of rebar up to 50 mm. Typical uses include curved reinforcement for tunnels, arches, bridge and viaduct elements, ring beams, circular columns, dome and shell structures, and architectural curved concrete work. Because it is built as a site-duty machine, it suits contractors who need to produce long, consistent arcs at the project location rather than transporting pre-bent cages. It handles the heavy bar sizes that smaller benders cannot form into smooth arcs.
Why Buy This Model from Gongda
- 50 mm arc capacity with R500-and-above radius capability — a genuine heavy-duty arc bender, not a converted standard bender.
- Two-speed drive (30–43 rpm roll speed, 5 kW + 6 kW motor) gives operators control across different bar sizes and radii.
- Engineering heritage — production rooted in the electromechanical works of Hefei University of Technology.
- Export experience across Russia, Spain, Latin America, the Middle East, Southeast Asia and Africa.
- Compact dimensions (1020 × 1000 × 1060 mm) simplify container loading and site placement.
Shipping, Certification & Support
Gongda ships from FOB Shanghai, Ningbo or Qingdao. EAC certification is available for buyers in EAC markets. Every machine carries a 12-month warranty with spare parts support. Sales and technical communication is available in English, Russian, Spanish, Arabic, French, Portuguese, German and Indonesian. For specifications, pricing or a quotation on the GWH50CG, contact Gongda via WhatsApp +86 193 9277 7259 or visit chinarebarmachinery.com.
Technical Specifications — GWH50CG
| Max rebar diameter for arc bending | 50mm |
|---|---|
| Bending arc diameter | R500 / unlimited |
| Drive wheel speed | 30 rpm—43 rpm |
| Drive wheel diameter | 270 mm |
| Driven wheel diameter | 270mm |
| Drive wheel height | 100mm |
| Driven wheel height | 105mm |
| Motor model | YD132M-4/6 |
| Motor power | 5KW+6KW |
| Motor speed | 1150/1650 rpm |
| Voltage / frequency | 380V / 50HZ |
| Dimensions | 1020 × 1000 × 1060 mm |
Compare with related models
| Model | GDWHWQ-36 | GDLWZX-32 | GDWQ4-15A | ZD-6M-25 | SKDZWH-36 | GWH50CGBest seller | GJZD6-65CZ | GJZD6-50CZ | GW25 | GWH50CZN | ZD-6M-20 | GDPMW-60 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bar range | — | Ø10mm-Ø32mm | Grade III deformed bar / 4-12 | — | 40mm | 50mm | A3 steel / 65mm | A3 steel / 50mm | 25mm | 50mm | — | — |
| Power | — | 4.4KW*2 | 15KW+5.5KW | 7.5KW | 4 kW + 2.5 kW (CNC servo) | 5KW+6KW | 8KW | 4.5KW | 3KW | 11KW | 8KW | 22kW |
| Output | 48-62 °/S | — | 100m/min | — | Servo control | 30 rpm—43 rpm | 4.5 / 7 rpm | 4.5 / 7 rpm | 35 rpm | 0—43 rpm | — | 72°/S |
| Power supply | — | — | — | — | 380V / 50HZ | 380V / 50HZ | 380V / 50HZ | 380V / 50HZ | 380V / 50HZ | 380V / 0-50HZ | — | 380V 50Hz |
Where this machine works
High-rise construction
CNC bending and shearing lines for beams, columns and slab reinforcement.
Precast & prefab plants
Five-head stirrup and forming machines for mass production of cage components.
Bridges & tunnels
Arc benders for tunnel lining, bridge reinforcement and large-radius bends.
Rebar fabricators
Straightening, cutting and thread rolling for custom fabrication shops.
Quality, export packing & after-sales
Run-test
Every machine is run-tested under load and checked against its specification sheet before packing.
Export crating
Anti-rust treatment, film wrapping and reinforced wooden crating protect the machine for sea freight.
Shipping methods
Standard container — small and medium machines (cutters, stirrup machines, welders).
After-sales support
Documentation, remote guidance via video or WhatsApp, and spare parts supply after delivery.
Buying questions
How do I choose between a rebar bending machine and a stirrup bending machine?
A rebar bending machine bends straight bars into angles (90°/135° etc.). A stirrup bending machine (single-head or five-head CNC) forms closed stirrups/ties from coiled or straight bar. If your work is stirrups and ties, choose a stirrup machine; if you bend straight bars for beams and columns, a CNC bending machine.
What is the capacity of a CNC five-head stirrup machine?
A five-head machine forms multiple stirrups in one cycle - e.g. ZD-6M-25 processes Ø8x10 bars, Ø10x7, Ø12x5 per stroke at 5-8 seconds per cycle, with ±2 mm length accuracy and ±1° angle accuracy.
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Rebar Arc Bending Machine — export markets
We ship the GWH50CG to 20 markets. Choose your destination port:
